[p5sagit/p5-mst-13.2.git] / lib / utf8_heavy.pl

package utf8;
use strict;
use warnings;

sub DEBUG () { 0 }

sub DESTROY {}

my %Cache;

sub croak { require Carp; Carp::croak(@_) }

##
## "SWASH" == "SWATCH HASH". A "swatch" is a swatch of the Unicode landscape.
## It's a data structure that encodes a set of Unicode characters.
##

sub SWASHNEW {
    my ($class, $type, $list, $minbits, $none) = @_;
    local $^D = 0 if $^D;

    print STDERR "SWASHNEW @_\n" if DEBUG;

    ##
    ## Get the list of codepoints for the type.
    ## Called from utf8.c
    ##
    ## Given a $type, our goal is to fill $list with the set of codepoint
    ## ranges.
    ##
    ## To make the parsing of $type clear, this code takes the a rather
    ## unorthodox approach of last'ing out of the block once we have the
    ## info we need. Were this to be a subroutine, the 'last' would just
    ## be a 'return'.
    ##
    my $file; ## file to load data from, and also part of the %Cache key.
    my $ListSorted = 0;

    if ($type)
    {
        $type =~ s/^\s+//;
        $type =~ s/\s+$//;

        print "type = $type\n" if DEBUG;

      GETFILE:
        {
            ##
            ## 'Is' is always optional, so if it's there, remove it.
            ## Same with 'Category=' and 'Script='.
            ##
            ## 'Block=' is replaced by 'In'.
            ##
            my $wasIs;

            ($wasIs = $type =~ s/^Is(?:\s+|[-_])?//i)
              or
            $type =~ s/^Category\s*=\s*//i
              or
            $type =~ s/^Script\s*=\s*//i
              or
            $type =~ s/^Block\s*=\s*/In/i;

            ##
            ## See if it's in the direct mapping table.
            ##
            require "unicore/Exact.pl";
            if (my $base = $utf8::Exact{$type}) {
                $file = "unicore/lib/$base.pl";
                last GETFILE;
            }

            ##
            ## If not there exactly, try the canonical form. The canonical
            ## form is lowercased, with any separators (\s+|[-_]) removed.
            ##
            my $canonical = lc $type;
            $canonical =~ s/(?<=[a-z\d])(?:\s+|[-_])(?=[a-z\d])//g;
            print "canonical = $canonical\n" if DEBUG;

            require "unicore/Canonical.pl";
            if (my $base = $utf8::Canonical{$canonical}) {
                $file = "unicore/lib/$base.pl";
                last GETFILE;
            }

	    ##
	    ## It could be a user-defined property.
	    ##

	    my $caller1 = $type =~ s/(.+)::// ? $1 : caller(1);

	    if (defined $caller1 && $type =~ /^(?:\w+)$/) {
		my $prop = $caller1 . "::" . ( $wasIs ? "Is" : "" ) . $type;
		if (exists &{$prop}) {
		    no strict 'refs';
		    
		    $list = &{$prop};
		    last GETFILE;
		}
	    }

	    ##
	    ## See if it's a user-level "To".
	    ##

	    my $caller0 = caller(0);

	    if (defined $caller0 && $type =~ /^To(?:\w+)$/) {
		my $map = $caller0 . "::" . $type;

		if (exists &{$map}) {
		    no strict 'refs';
		    
		    $list = &{$map};
		    last GETFILE;
		}
	    }

            ##
            ## Last attempt -- see if it's a standard "To" name
	    ## (e.g. "ToLower")  ToTitle is used by ucfirst().
	    ## The user-level way to access ToDigit() and ToFold()
	    ## is to use Unicode::UCD.
            ##
            if ($type =~ /^To(Digit|Fold|Lower|Title|Upper)$/)
            {
                $file = "unicore/To/$1.pl";
                ## would like to test to see if $file actually exists....
                last GETFILE;
            }

            ##
            ## If we reach this line, it's because we couldn't figure
            ## out what to do with $type. Ouch.
            ##

            return $type;
        }

	if (defined $file) {
	    print "found it (file='$file')\n" if DEBUG;

	    ##
	    ## If we reach here, it was due to a 'last GETFILE' above
	    ## (exception: user-defined properties and mappings), so we
	    ## have a filename, so now we load it if we haven't already.
	    ## If we have, return the cached results. The cache key is the
	    ## file to load.
	    ##
	    if ($Cache{$file} and ref($Cache{$file}) eq $class)
	    {
		print "Returning cached '$file' for \\p{$type}\n" if DEBUG;
		return $Cache{$class, $file};
	    }

	    $list = do $file;
	}

        $ListSorted = 1; ## we know that these lists are sorted
    }

    my $extras;
    my $bits = 0;

    my $ORIG = $list;
    if ($list) {
	my @tmp = split(/^/m, $list);
	my %seen;
	no warnings;
	$extras = join '', grep /^[^0-9a-fA-F]/, @tmp;
	$list = join '',
	    map  { $_->[1] }
	    sort { $a->[0] <=> $b->[0] }
	    map  { /^([0-9a-fA-F]+)/; [ hex($1), $_ ] }
	    grep { /^([0-9a-fA-F]+)/ and not $seen{$1}++ } @tmp; # XXX doesn't do ranges right
    }

    if ($none) {
	my $hextra = sprintf "%04x", $none + 1;
	$list =~ s/\tXXXX$/\t$hextra/mg;
    }

    if ($minbits < 32) {
	my $top = 0;
	while ($list =~ /^([0-9a-fA-F]+)(?:[\t]([0-9a-fA-F]+)?)(?:[ \t]([0-9a-fA-F]+))?/mg) {
	    my $min = hex $1;
	    my $max = defined $2 ? hex $2 : $min;
	    my $val = defined $3 ? hex $3 : 0;
	    $val += $max - $min if defined $3;
	    $top = $val if $val > $top;
	}
	$bits =
	    $top > 0xffff ? 32 :
	    $top > 0xff ? 16 :
	    $top > 1 ? 8 : 1
    }
    $bits = $minbits if $bits < $minbits;

    my @extras;
    for my $x ($extras) {
	pos $x = 0;
	while ($x =~ /^([^0-9a-fA-F\n])(.*)/mg) {
	    my $char = $1;
	    my $name = $2;
	    print STDERR "$1 => $2\n" if DEBUG;
	    if ($char =~ /[-+!&]/) {
		my ($c,$t) = split(/::/, $name, 2);	# bogus use of ::, really
		my $subobj;
		if ($c eq 'utf8') {
		    $subobj = utf8->SWASHNEW($t, "", 0, 0, 0);
		}
		elsif (exists &$name) {
		    $subobj = utf8->SWASHNEW($name, "", 0, 0, 0);
		}
		elsif ($c =~ /^([0-9a-fA-F]+)/) {
		    $subobj = utf8->SWASHNEW("", $c, 0, 0, 0);
		}
		return $subobj unless ref $subobj;
		push @extras, $name => $subobj;
		$bits = $subobj->{BITS} if $bits < $subobj->{BITS};
	    }
	}
    }

    print STDERR "CLASS = $class, TYPE => $type, BITS => $bits, NONE => $none\nEXTRAS =>\n$extras\nLIST =>\n$list\n" if DEBUG;

    my $SWASH = bless {
	TYPE => $type,
	BITS => $bits,
	EXTRAS => $extras,
	LIST => $list,
	NONE => $none,
	@extras,
    } => $class;

    if ($file) {
        $Cache{$class, $file} = $SWASH;
    }

    return $SWASH;
}

# NOTE: utf8.c:swash_init() assumes entries are never modified once generated.

sub SWASHGET {
    # See utf8.c:Perl_swash_fetch for problems with this interface.
    my ($self, $start, $len) = @_;
    local $^D = 0 if $^D;
    my $type = $self->{TYPE};
    my $bits = $self->{BITS};
    my $none = $self->{NONE};
    print STDERR "SWASHGET @_ [$type/$bits/$none]\n" if DEBUG;
    my $end = $start + $len;
    my $swatch = "";
    my $key;
    vec($swatch, $len - 1, $bits) = 0;	# Extend to correct length.
    if ($none) {
	for $key (0 .. $len - 1) { vec($swatch, $key, $bits) = $none }
    }

    for ($self->{LIST}) {
	pos $_ = 0;
	if ($bits > 1) {
	  LINE:
	    while (/^([0-9a-fA-F]+)(?:[ \t]([0-9a-fA-F]+)?)?(?:[ \t]([0-9a-fA-F]+))?/mg) {
		chomp;
		my ($a, $b, $c) = ($1, $2, $3);
		croak "$type: illegal mapping '$_'"
		    if $type =~ /^To/ &&
		       !(defined $a && defined $c);
		my $min = hex $a;
		my $max = defined $b ? hex $b : $min;
		my $val = defined $c ? hex $c : 0;
		next if $max < $start;
		print "$min $max $val\n" if DEBUG;
		if ($none) {
		    if ($min < $start) {
			$val += $start - $min if $val < $none;
			$min = $start;
		    }
		    for ($key = $min; $key <= $max; $key++) {
			last LINE if $key >= $end;
			print STDERR "$key => $val\n" if DEBUG;
			vec($swatch, $key - $start, $bits) = $val;
			++$val if $val < $none;
		    }
		}
		else {
		    if ($min < $start) {
			$val += $start - $min;
			$min = $start;
		    }
		    for ($key = $min; $key <= $max; $key++, $val++) {
			last LINE if $key >= $end;
			print STDERR "$key => $val\n" if DEBUG;
			vec($swatch, $key - $start, $bits) = $val;
		    }
		}
	    }
	}
	else {
	  LINE:
	    while (/^([0-9a-fA-F]+)(?:[ \t]+([0-9a-fA-F]+))?/mg) {
		chomp;
		my $min = hex $1;
		my $max = defined $2 ? hex $2 : $min;
		next if $max < $start;
		if ($min < $start) {
		    $min = $start;
		}
		for ($key = $min; $key <= $max; $key++) {
		    last LINE if $key >= $end;
		    print STDERR "$key => 1\n" if DEBUG;
		    vec($swatch, $key - $start, 1) = 1;
		}
	    }
	}
    }
    for my $x ($self->{EXTRAS}) {
	pos $x = 0;
	while ($x =~ /^([-+!&])(.*)/mg) {
	    my $char = $1;
	    my $name = $2;
	    print STDERR "INDIRECT $1 $2\n" if DEBUG;
	    my $otherbits = $self->{$name}->{BITS};
	    croak("SWASHGET size mismatch") if $bits < $otherbits;
	    my $other = $self->{$name}->SWASHGET($start, $len);
	    if ($char eq '+') {
		if ($bits == 1 and $otherbits == 1) {
		    $swatch |= $other;
		}
		else {
		    for ($key = 0; $key < $len; $key++) {
			vec($swatch, $key, $bits) = vec($other, $key, $otherbits);
		    }
		}
	    }
	    elsif ($char eq '!') {
		if ($bits == 1 and $otherbits == 1) {
		    $swatch |= ~$other;
		}
		else {
		    for ($key = 0; $key < $len; $key++) {
			if (!vec($other, $key, $otherbits)) {
			    vec($swatch, $key, $bits) = 1;
			}
		    }
		}
	    }
	    elsif ($char eq '-') {
		if ($bits == 1 and $otherbits == 1) {
		    $swatch &= ~$other;
		}
		else {
		    for ($key = 0; $key < $len; $key++) {
			if (vec($other, $key, $otherbits)) {
			    vec($swatch, $key, $bits) = 0;
			}
		    }
		}
	    }
	    elsif ($char eq '&') {
		if ($bits == 1 and $otherbits == 1) {
		    $swatch &= $other;
		}
		else {
		    for ($key = 0; $key < $len; $key++) {
			if (!vec($other, $key, $otherbits)) {
			    vec($swatch, $key, $bits) = 0;
			}
		    }
		}
	    }
	}
    }
    if (DEBUG) {
	print STDERR "CELLS ";
	for ($key = 0; $key < $len; $key++) {
	    print STDERR vec($swatch, $key, $bits), " ";
	}
	print STDERR "\n";
    }
    $swatch;
}

1;
Commit	Line	Data
a0ed51b3	1	package utf8;
cf25bb62	2	use strict;
cf25bb62	3	use warnings;
a0ed51b3	4
15732964	5	sub DEBUG () { 0 }
a0ed51b3	6
	7	sub DESTROY {}
	8
5beb625e	9	my %Cache;
5beb625e	10
86916d66	11	sub croak { require Carp; Carp::croak(@_) }
86916d66	12
5beb625e	13	##
3a2263fe	14	## "SWASH" == "SWATCH HASH". A "swatch" is a swatch of the Unicode landscape.
3a2263fe	15	## It's a data structure that encodes a set of Unicode characters.
5beb625e	16	##
5beb625e	17
a0ed51b3	18	sub SWASHNEW {
	19	my ($class, $type, $list, $minbits, $none) = @_;
	20	local $^D = 0 if $^D;
15732964	21
	22	print STDERR "SWASHNEW @_\n" if DEBUG;
	23
cf25bb62	24	##
	25	## Get the list of codepoints for the type.
	26	## Called from utf8.c
	27	##
	28	## Given a $type, our goal is to fill $list with the set of codepoint
5beb625e	29	## ranges.
cf25bb62	30	##
cf25bb62	31	## To make the parsing of $type clear, this code takes the a rather
2d92f8a0	32	## unorthodox approach of last'ing out of the block once we have the
cf25bb62	33	## info we need. Were this to be a subroutine, the 'last' would just
	34	## be a 'return'.
	35	##
5beb625e	36	my $file; ## file to load data from, and also part of the %Cache key.
	37	my $ListSorted = 0;
	38
cf25bb62	39	if ($type)
	40	{
	41	$type =~ s/^\s+//;
	42	$type =~ s/\s+$//;
	43
	44	print "type = $type\n" if DEBUG;
	45
cf25bb62	46	GETFILE:
	47	{
	48	##
5beb625e	49	## 'Is' is always optional, so if it's there, remove it.
5beb625e	50	## Same with 'Category=' and 'Script='.
cf25bb62	51	##
5beb625e	52	## 'Block=' is replaced by 'In'.
cf25bb62	53	##
2d92f8a0	54	my $wasIs;
	55
	56	($wasIs = $type =~ s/^Is(?:\s+\|[-_])?//i)
5beb625e	57	or
	58	$type =~ s/^Category\s=\s//i
	59	or
	60	$type =~ s/^Script\s=\s//i
	61	or
	62	$type =~ s/^Block\s=\s/In/i;
cf25bb62	63
5beb625e	64	##
	65	## See if it's in the direct mapping table.
	66	##
	67	require "unicore/Exact.pl";
	68	if (my $base = $utf8::Exact{$type}) {
	69	$file = "unicore/lib/$base.pl";
	70	last GETFILE;
cf25bb62	71	}
	72
	73	##
5beb625e	74	## If not there exactly, try the canonical form. The canonical
5beb625e	75	## form is lowercased, with any separators (\s+\|[-_]) removed.
cf25bb62	76	##
5beb625e	77	my $canonical = lc $type;
	78	$canonical =~ s/(?<=[a-z\d])(?:\s+\|[-_])(?=[a-z\d])//g;
	79	print "canonical = $canonical\n" if DEBUG;
cf25bb62	80
5beb625e	81	require "unicore/Canonical.pl";
	82	if (my $base = $utf8::Canonical{$canonical}) {
	83	$file = "unicore/lib/$base.pl";
	84	last GETFILE;
cf25bb62	85	}
cf25bb62	86
491fd90a	87	##
	88	## It could be a user-defined property.
	89	##
	90
09e0265a	91	my $caller1 = $type =~ s/(.+)::// ? $1 : caller(1);
2d92f8a0	92
3a2263fe	93	if (defined $caller1 && $type =~ /^(?:\w+)$/) {
3a2263fe	94	my $prop = $caller1 . "::" . ( $wasIs ? "Is" : "" ) . $type;
2d92f8a0	95	if (exists &{$prop}) {
	96	no strict 'refs';
	97
	98	$list = &{$prop};
	99	last GETFILE;
	100	}
	101	}
491fd90a	102
3a2263fe	103	##
	104	## See if it's a user-level "To".
	105	##
	106
	107	my $caller0 = caller(0);
	108
	109	if (defined $caller0 && $type =~ /^To(?:\w+)$/) {
	110	my $map = $caller0 . "::" . $type;
09e0265a	111
3a2263fe	112	if (exists &{$map}) {
	113	no strict 'refs';
	114
	115	$list = &{$map};
	116	last GETFILE;
	117	}
	118	}
	119
cf25bb62	120	##
3a2263fe	121	## Last attempt -- see if it's a standard "To" name
	122	## (e.g. "ToLower") ToTitle is used by ucfirst().
	123	## The user-level way to access ToDigit() and ToFold()
	124	## is to use Unicode::UCD.
cf25bb62	125	##
3a2263fe	126	if ($type =~ /^To(Digit\|Fold\|Lower\|Title\|Upper)$/)
cf25bb62	127	{
	128	$file = "unicore/To/$1.pl";
	129	## would like to test to see if $file actually exists....
	130	last GETFILE;
	131	}
	132
	133	##
	134	## If we reach this line, it's because we couldn't figure
	135	## out what to do with $type. Ouch.
	136	##
bc45ce41	137
bc45ce41	138	return $type;
cf25bb62	139	}
cf25bb62	140
491fd90a	141	if (defined $file) {
	142	print "found it (file='$file')\n" if DEBUG;
	143
	144	##
	145	## If we reach here, it was due to a 'last GETFILE' above
3a2263fe	146	## (exception: user-defined properties and mappings), so we
491fd90a	147	## have a filename, so now we load it if we haven't already.
	148	## If we have, return the cached results. The cache key is the
	149	## file to load.
	150	##
	151	if ($Cache{$file} and ref($Cache{$file}) eq $class)
	152	{
	153	print "Returning cached '$file' for \\p{$type}\n" if DEBUG;
	154	return $Cache{$class, $file};
	155	}
	156
	157	$list = do $file;
	158	}
5beb625e	159
5beb625e	160	$ListSorted = 1; ## we know that these lists are sorted
886ba366	161	}
a0ed51b3	162
15732964	163	my $extras;
485aafd9	164	my $bits = 0;
cf25bb62	165
5beb625e	166	my $ORIG = $list;
a0ed51b3	167	if ($list) {
	168	my @tmp = split(/^/m, $list);
	169	my %seen;
db376a24	170	no warnings;
a0ed51b3	171	$extras = join '', grep /^[^0-9a-fA-F]/, @tmp;
a0ed51b3	172	$list = join '',
df68b396	173	map { $_->[1] }
	174	sort { $a->[0] <=> $b->[0] }
	175	map { /^([0-9a-fA-F]+)/; [ hex($1), $_ ] }
	176	grep { /^([0-9a-fA-F]+)/ and not $seen{$1}++ } @tmp; # XXX doesn't do ranges right
a0ed51b3	177	}
	178
	179	if ($none) {
	180	my $hextra = sprintf "%04x", $none + 1;
	181	$list =~ s/\tXXXX$/\t$hextra/mg;
	182	}
	183
	184	if ($minbits < 32) {
	185	my $top = 0;
3a2263fe	186	while ($list =~ /^([0-9a-fA-F]+)(?:[\t]([0-9a-fA-F]+)?)(?:[ \t]([0-9a-fA-F]+))?/mg) {
a0ed51b3	187	my $min = hex $1;
3a2263fe	188	my $max = defined $2 ? hex $2 : $min;
3a2263fe	189	my $val = defined $3 ? hex $3 : 0;
a0ed51b3	190	$val += $max - $min if defined $3;
	191	$top = $val if $val > $top;
	192	}
	193	$bits =
	194	$top > 0xffff ? 32 :
	195	$top > 0xff ? 16 :
	196	$top > 1 ? 8 : 1
	197	}
	198	$bits = $minbits if $bits < $minbits;
	199
	200	my @extras;
	201	for my $x ($extras) {
	202	pos $x = 0;
1fef36c7	203	while ($x =~ /^([^0-9a-fA-F\n])(.*)/mg) {
a0ed51b3	204	my $char = $1;
a0ed51b3	205	my $name = $2;
6d6ae962	206	print STDERR "$1 => $2\n" if DEBUG;
09e0265a	207	if ($char =~ /[-+!&]/) {
a0ed51b3	208	my ($c,$t) = split(/::/, $name, 2); # bogus use of ::, really
11ef8fdd	209	my $subobj;
11ef8fdd	210	if ($c eq 'utf8') {
09e0265a	211	$subobj = utf8->SWASHNEW($t, "", 0, 0, 0);
	212	}
	213	elsif (exists &$name) {
	214	$subobj = utf8->SWASHNEW($name, "", 0, 0, 0);
11ef8fdd	215	}
	216	elsif ($c =~ /^([0-9a-fA-F]+)/) {
	217	$subobj = utf8->SWASHNEW("", $c, 0, 0, 0);
	218	}
bc45ce41	219	return $subobj unless ref $subobj;
a0ed51b3	220	push @extras, $name => $subobj;
	221	$bits = $subobj->{BITS} if $bits < $subobj->{BITS};
	222	}
	223	}
	224	}
	225
15732964	226	print STDERR "CLASS = $class, TYPE => $type, BITS => $bits, NONE => $none\nEXTRAS =>\n$extras\nLIST =>\n$list\n" if DEBUG;
a0ed51b3	227
5beb625e	228	my $SWASH = bless {
a0ed51b3	229	TYPE => $type,
	230	BITS => $bits,
	231	EXTRAS => $extras,
	232	LIST => $list,
	233	NONE => $none,
	234	@extras,
	235	} => $class;
5beb625e	236
	237	if ($file) {
	238	$Cache{$class, $file} = $SWASH;
	239	}
	240
	241	return $SWASH;
a0ed51b3	242	}
	243
	244	# NOTE: utf8.c:swash_init() assumes entries are never modified once generated.
	245
	246	sub SWASHGET {
035d37be	247	# See utf8.c:Perl_swash_fetch for problems with this interface.
a0ed51b3	248	my ($self, $start, $len) = @_;
a0ed51b3	249	local $^D = 0 if $^D;
a0ed51b3	250	my $type = $self->{TYPE};
	251	my $bits = $self->{BITS};
	252	my $none = $self->{NONE};
15732964	253	print STDERR "SWASHGET @_ [$type/$bits/$none]\n" if DEBUG;
a0ed51b3	254	my $end = $start + $len;
	255	my $swatch = "";
	256	my $key;
	257	vec($swatch, $len - 1, $bits) = 0; # Extend to correct length.
	258	if ($none) {
	259	for $key (0 .. $len - 1) { vec($swatch, $key, $bits) = $none }
	260	}
	261
	262	for ($self->{LIST}) {
	263	pos $_ = 0;
	264	if ($bits > 1) {
	265	LINE:
3a2263fe	266	while (/^([0-9a-fA-F]+)(?:[ \t]([0-9a-fA-F]+)?)?(?:[ \t]([0-9a-fA-F]+))?/mg) {
	267	chomp;
	268	my ($a, $b, $c) = ($1, $2, $3);
	269	croak "$type: illegal mapping '$_'"
	270	if $type =~ /^To/ &&
	271	!(defined $a && defined $c);
	272	my $min = hex $a;
	273	my $max = defined $b ? hex $b : $min;
	274	my $val = defined $c ? hex $c : 0;
a0ed51b3	275	next if $max < $start;
6d6ae962	276	print "$min $max $val\n" if DEBUG;
a0ed51b3	277	if ($none) {
a0ed51b3	278	if ($min < $start) {
710250cb	279	$val += $start - $min if $val < $none;
a0ed51b3	280	$min = $start;
	281	}
	282	for ($key = $min; $key <= $max; $key++) {
	283	last LINE if $key >= $end;
6d6ae962	284	print STDERR "$key => $val\n" if DEBUG;
a0ed51b3	285	vec($swatch, $key - $start, $bits) = $val;
	286	++$val if $val < $none;
	287	}
	288	}
	289	else {
	290	if ($min < $start) {
	291	$val += $start - $min;
	292	$min = $start;
	293	}
	294	for ($key = $min; $key <= $max; $key++, $val++) {
	295	last LINE if $key >= $end;
6d6ae962	296	print STDERR "$key => $val\n" if DEBUG;
a0ed51b3	297	vec($swatch, $key - $start, $bits) = $val;
	298	}
	299	}
	300	}
	301	}
	302	else {
	303	LINE:
99a6b1f0	304	while (/^([0-9a-fA-F]+)(?:[ \t]+([0-9a-fA-F]+))?/mg) {
3a2263fe	305	chomp;
a0ed51b3	306	my $min = hex $1;
3a2263fe	307	my $max = defined $2 ? hex $2 : $min;
a0ed51b3	308	next if $max < $start;
	309	if ($min < $start) {
	310	$min = $start;
	311	}
	312	for ($key = $min; $key <= $max; $key++) {
	313	last LINE if $key >= $end;
6d6ae962	314	print STDERR "$key => 1\n" if DEBUG;
a0ed51b3	315	vec($swatch, $key - $start, 1) = 1;
	316	}
	317	}
	318	}
	319	}
	320	for my $x ($self->{EXTRAS}) {
	321	pos $x = 0;
09e0265a	322	while ($x =~ /^([-+!&])(.*)/mg) {
a0ed51b3	323	my $char = $1;
a0ed51b3	324	my $name = $2;
15732964	325	print STDERR "INDIRECT $1 $2\n" if DEBUG;
1fef36c7	326	my $otherbits = $self->{$name}->{BITS};
	327	croak("SWASHGET size mismatch") if $bits < $otherbits;
	328	my $other = $self->{$name}->SWASHGET($start, $len);
	329	if ($char eq '+') {
	330	if ($bits == 1 and $otherbits == 1) {
	331	$swatch \|= $other;
a0ed51b3	332	}
1fef36c7	333	else {
	334	for ($key = 0; $key < $len; $key++) {
	335	vec($swatch, $key, $bits) = vec($other, $key, $otherbits);
a0ed51b3	336	}
1fef36c7	337	}
	338	}
	339	elsif ($char eq '!') {
	340	if ($bits == 1 and $otherbits == 1) {
	341	$swatch \|= ~$other;
	342	}
	343	else {
	344	for ($key = 0; $key < $len; $key++) {
	345	if (!vec($other, $key, $otherbits)) {
	346	vec($swatch, $key, $bits) = 1;
a0ed51b3	347	}
	348	}
	349	}
1fef36c7	350	}
	351	elsif ($char eq '-') {
	352	if ($bits == 1 and $otherbits == 1) {
	353	$swatch &= ~$other;
	354	}
	355	else {
	356	for ($key = 0; $key < $len; $key++) {
	357	if (vec($other, $key, $otherbits)) {
	358	vec($swatch, $key, $bits) = 0;
a0ed51b3	359	}
	360	}
	361	}
	362	}
09e0265a	363	elsif ($char eq '&') {
	364	if ($bits == 1 and $otherbits == 1) {
	365	$swatch &= $other;
	366	}
	367	else {
	368	for ($key = 0; $key < $len; $key++) {
	369	if (!vec($other, $key, $otherbits)) {
	370	vec($swatch, $key, $bits) = 0;
	371	}
	372	}
	373	}
	374	}
a0ed51b3	375	}
a0ed51b3	376	}
15732964	377	if (DEBUG) {
a0ed51b3	378	print STDERR "CELLS ";
	379	for ($key = 0; $key < $len; $key++) {
	380	print STDERR vec($swatch, $key, $bits), " ";
	381	}
	382	print STDERR "\n";
	383	}
	384	$swatch;
	385	}
	386
	387	1;